Fluxx : Martian

From the publisher's website:

Are you ready to conquer the earth? Martian Fluxx is a classic monster story in ever-changing card game form. It's an Invasion from the Planet Mars! The players are the Martians determined to destroy the Pathetic Humans who are keeping them from winning. It's got Flying Saucers, Giant Tripod War Machines, Tentacles, Ray Guns, a Mothership, and of course, a Space Modulator. Be careful - you don't want your Humans escaping from the Abduction Chamber!

Fluxx : CthulhuAre you inevitably doomed to a lifetime of nightmares in the sanitarium, or are you, in fact, a secret cultist, worshiping the minions of darkness? Gaze upon the ever- changing face of madness with Cthulhu Fluxx!£10.99

Fluxx : EcoEco Fluxx - want to save the planet? It's not easy when the rules keep changing. Proceeds from the sale of EcoFluxx supports conservation activism through the EcoFluxx Foundation.£9.99

Fluxx : FireflyJoin Mal, Wash, Zoë, Inara, Kaylee, Jayne, Simon, River, Book, and more as Fluxx enters the 'Verse at full speed. With the rules constantly changing, Firefly Fluxx is just as unpredictable as misbehaving in space!£12.99

Fluxx : HolidayThe cards you play determine the rules! This version covers the holidays, including New Year, Christmas and Hanukkan!£9.99

Fluxx : MonsterMore madness and mayhem from the Fluxx team, this time it's vampires, werewolves and other assorted monsters.£9.99